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MAX5258EEE+ Datasheet

Download or read online Maxim Integrated MAX5258EEE+ IC DAC 8BIT OCTAL 5V R-R 16-QSOP pdf datasheet.



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19-1844; Rev 1; 4/01
+3V/+5V, Low-Power, 8-Bit Octal DACs
General Description
The MAX5258/MAX5259 are +3V/+5V single-supply,
digital serial-input, voltage-output, 8-bit octal digital-to-
analog converters (DACs). Internal precision buffers
®
swing Rail-to-Rail
, and the reference input range
extends from ground to the positive supply. The +5V
(MAX5258) and the +3V (MAX5259) feature a 10µA
(max) shutdown mode.
The serial interface is double-buffered. A 16-bit input
shift register is followed by eight 8-bit input registers
and eight 8-bit DAC registers. The 16-bit serial word
consists of two “don’t care” bits, three address bits,
three control bits, and eight data bits. The input and
DAC registers can both be updated independently or
simultaneously with a single software command. The
asynchronous control input (LDAC) provides simultane-
ous updating of all eight DAC registers.
The interface is compatible with SPI™, QSPI™ (CPOL =
CPHA = 0 or CPOL = CPHA = 1), and MICROWIRE™.
A buffered digital data output allows daisy-chaining of
serial devices.
The MAX5258/MAX5259 are available in a 16-pin QSOP
package.
________________________Applications
Digital Gain and Offset Adjustment
Programmable Attenuators
Programmable Current Sources
Portable Instruments
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
with Rail-to-Rail Output Buffers
♦ +2.7V to +5.5V Single-Supply Operation
♦ Low Supply Current: 1.3mA
♦ Low-Power Shutdown Mode
0.24µA (MAX5259)
0.45µA (MAX5258)
♦ ±1LSB DNL (max)
♦ ±1LSB INL (max)
♦ Ground to V
♦ Output Buffer Amplifiers Swing Rail-to-Rail
♦ 10MHz Serial Interface, SPI, QSPI (CPOL = CPHA
= 0 or CPOL = CPHA = 1), and MICROWIRE-
Compatible
♦ Double-Buffered Registers for Synchronous
Updating
♦ Serial Data Output for Daisy-Chaining
♦ Ultra-Small 16-Pin QSOP Package
PART
MAX5258EEE -40
MAX5259EEE -40
TOP VIEW
OUTB
OUTA
LDAC
OUTE
OUTF
Features
Reference Input Range
DD
Ordering Information
SU PPL Y
VO LT A G E
TEMP. RANGE PIN- PACK AGE
( V)
o
o
C to +85
C
16 QSOP
+5.0
o
o
C to +85
C
16 QSOP
+3.0
Pin Configuration
1
16
OUTC
2
15
OUTD
GND
3
14
DOUT
MAX5258
V
4
13
DIN
DD
MAX5259
SCLK
REF
5
12
CS
6
11
7
10
OUTH
8
9
OUTG
QSOP
1
Specifications of Maxim Integrated MAX5258EEE+
Data Interface:
Serial
Interface Type:
Serial (SPI)
Lead Free Status / Rohs Status:
Lead free / RoHS Compliant
Maximum Operating Temperature:
+ 85 C
Minimum Operating Temperature:
- 40 C
Mounting Style:
SMD/SMT
Mounting Type:
Surface Mount
Number Of Bits:
8
Number Of Converters:
8
Number Of Dac Outputs:
8
Operating Temperature:
-40°C ~ 85°C
Package / Case:
16-QSOP
Power Dissipation (max):
-
Resolution:
8 bit
Series:
-
Settling Time:
10µs
Supply Voltage (max):
5.5 V
Supply Voltage (min):
4.5 V
Voltage Reference:
External
Voltage Supply Source:
Single Supply

Summary of Contents

Page 1

... SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. ___ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. with Rail-to-Rail Output Buffers 2.7V to 5.5V Single-Supply Operation ♦ ...

Page 2

... Maximum Current into Any Pin...50mA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...

Page 3

Low-Power, 8-Bit Octal DAC ELECTRICAL CHARACTERISTICS (MAX5258) (continued 4.5V to 5.5V 4.096V, GND REF values are 5V and T 25°C PARAMETER SYMBOL Input Current Input ...

Page 4

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers ELECTRICAL CHARACTERISTICS (MAX5259 2.7V to 3.3V 2.5V, GND REF are 3V, and T 25°C PARAMETER SYMBOL STATIC ...

Page 5

Low-Power, 8-Bit Octal DAC ELECTRICAL CHARACTERISTICS (MAX5259) (continued 2.7V to 3.3V 2.5V, GND REF are 3V, and T 25°C PARAMETER SYMBOL Digital Feedthrough Digital-to-Analog Glitch ...

Page 6

... Time Note 1: INL and DNL are measured with R equal to the maximum offset specification to code FF hex (full scale). (See DAC Linearity and Voltage Offset section.) Note 2: Output settling time is measured from the 50% point of the rising edge 1/2LSB of the final value of V Note 3: Guaranteed by design, not production tested. ...

Page 7

Low-Power, 8-Bit Octal DAC (T 25°C, unless otherwise noted.) A DAC ZERO-CODE OUTPUT VOLTAGE vs. OUTPUT SINK CURRENT 800 V 3V DD 700 600 500 400 300 200 100 DAC OUTPUT ...

Page 8

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers (T 25°C, unless otherwise noted.) A SUPPLY CURRENT vs. REFERENCE VOLTAGE (V 5V) DD 1.8 1.6 1.4 ALL DAC CODES FF HEX 1.2 1.0 0.8 ALL DAC CODES ...

Page 9

Low-Power, 8-Bit Octal DAC (T 25°C, unless otherwise noted.) A WORST-CASE 1LSB DIGITAL STEP CHANGE (NEGATIVE) CS OUTA 1µs/div 4.5V REF POSITIVE SETTLING TIME CS OUTA 2µs/div ...

Page 10

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers PIN NAME 1 OUTB DAC B Voltage Output 2 OUTA DAC A Voltage Output 3 GND Ground 4 V Power Supply DD 5 REF Reference Voltage Input Load DAC Input. Driving ...

Page 11

Low-Power, 8-Bit Octal DAC CS SCLK DIN DACA DOUT MODE ...

Page 12

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers Table 1. Serial-Interface Programming Commands 16-BIT SERIAL WORD ...

Page 13

Low-Power, 8-Bit Octal DAC Dont Care 0 (LDAC X) The no-operation (NOP) command allows data to be shifted through the MAX5258/MAX5259 shift register without affecting the input or DAC registers. This is useful in ...

Page 14

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers Dont Care 1 (LDAC X) All eight DAC registers are updated with shift-register data. This command allows all DACs to be set to any analog value ...

Page 15

Low-Power, 8-Bit Octal DAC LDAC Operation (Hardware) LDAC is typically used in 4-wire interfaces (Figure 4). This command is level sensitive, and it allows asyn- chronous hardware control of the DAC outputs. With LDAC low, all eight DAC registers ...

Page 16

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers DIN SCLK LDAC CS1 CS2 CS3 CS MAX5258/ LDAC MAX5259 SCLK DIN Figure 4. Multiple MAX5258s Sharing One DIN Line. (Simultaneously Update by Strobing an Individual CS ) SCLK MAX5258/ DIN ...

Page 17

... Crosstalk (Bottom View) Power Sequencing The voltage applied to REF should not exceed V any time. If proper power sequencing is not possible, connect an external Schottky diode between REF and V to ensure compliance with the absolute maximum DD ___ with Rail-to-Rail Output Buffers R15 R16 ...

Page 18

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers 3V REFERENCE INPUT REF V DD DAC A DAC B DAC C DAC D DAC E DAC F DAC G DAC H MAX5258/ MAX5259 Figure 11. Unipolar Output Circuit 18 ___ ...

Page 19

Low-Power, 8-Bit Octal DAC with Rail-to-Rail Output Buffers DOUT LDAC DECODE CONTROL INPUT REGISTER A INPUT REGISTER B INPUT REGISTER C 16-BIT INPUT SHIFT REGISTER REGISTER D INPUT REGISTER E INPUT REGISTER F INPUT REGISTER G INPUT SR REGISTER ...

Page 20

... For the latest package outline information www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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